is 2 104819381 - 1
has 31553778 decimal digits
takes 417.349 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276146.003564.4737%7550002098300010.72153.9027%156.725065.8602%1.3865%
PrimeNet2729.123662.5000%450000220000009.37655.3948%18.500164.5231%2.0231%
GPU72276146.003564.4737%6500002400000011.09733.9262%157.100865.8685%1.3948%
Difference---+105000-3017000-0.3758-0.0235%-0.3758-0.0083%-0.0083%

Known prime factors (1 factor, 88.9 bits, 0.00008481% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1048193815749837836446125764355183372788.8942742736019613646528
26 × 84017 × 251431 × 2028701
2021-07-1025143120287011,137,5652.01062.9542

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-10T04:36:23Jwb52zClay755000209830002788.89410.72834.721.443.903%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-19T12:39:00LelikoidWo263264--0.019--
2010-08-29T02:20:00carlos56phenom810264265--0.036--
2012-05-08T01:16:00omiXorpSCS-DEV-z800-01265266--0.071--
2013-09-09T21:36:00willmoreManual testing266267--0.143--
2013-09-12T15:41:00Cow_tippingManual testing267268--0.285--
2013-09-15T16:47:00ANONYMOUSManual testing268269--0.570--
2013-09-21T04:30:00Kelly Lowder269270--1.141--
2013-09-24T10:10:00ITSCP_-_Server1270271--2.281--
2014-12-28T08:16:00shaugeManual testing271272--4.563--
2019-12-17T00:00:11storm5510Manual testing272273--9.125--
2020-04-03T05:40:47SRBaseManual testing273274--18.25--
2021-03-28T20:34:11TheJudgerManual testing274275--36.50--
2021-03-28T20:34:11TheJudgerManual testing275276--73.00--


ECM factoring results:
No ECM results for M104819381


Lucas-Lehmer results:
No L-L results for M104819381


PRP results:
No PRP results for M104819381


P-1 factor-bounds graph:
B1 = 755000, B2 = 20983000 (P-1 stage 2)
B1 = 755000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-07-10T04:36:23+00:00